Surplus Center - 4" STROKE 500 LBS 12 VDC LINEAR ACTUATOR

September 6, 2013 – 11:09

Item# 5-1759

Our Price $99.95


142 In Stock

New, heavy duty linear actuator. ACME screw drive with built-in overload clutch. Metal housing is water resistant and sealed against dust. Permanent magnet motor. No limit switches or potentiometer.


  • Stroke 100 mm (4")
  • Voltage 12 DC
  • Push/Pull Ratings
    Dynamic 500 lbs. max
    Static 1000 lbs. max
  • Extension Speed
    No Load 0.71 in/sec
    Max Load 0.51 in/sec
  • Amps
    No Load 2
    Full Load 24
  • Duty 25%
  • Enclosure IP65
  • Pin Holes 1/2"
  • Retracted Length 10.24"
  • Shaft Dia. 1-1/8"
  • Size 11.24" x 3.04" x 5.97"
  • Shpg. 11 lbs.


Click is usually actuator arm not head crash

2013-04-26 12:55:58 by RobNLA

The click can mean a head crash happened, and it may indicate that the head is being dragged on the platter, but it's not actually from the head hitting the platter.
In modern drives the clicking is almost always a result of the arm sweeping back and forth over the disk trying to get position data. The clicking sound is the back end of the actuator arm hitting the stop that constrains the arm's range of movement.
The clicking sound is usually caused by one of these:
1. Spindle motor failure/stuck spindle/bad power to motor
2. Circuit board failure
3. Read/write head failure

More ideas

2009-09-01 13:40:40 by davidcarradineded

Try taping the drive, with your knuckle, may throw it in working
long enoug
if you open the drive, do not get finger prints on the platter, its the oil from us that does the damage, not dust particles
the clicking you hear means the arm has scratched the disk, you might replace the head on the actuator arm, google it,
When you are replacing boards watch out for static electricity
I think its the head on the actuator arm, what fun
I back up my data three or four times now, jumbo drives are cheap now, and I also back up to dvd copies off site
(Never tried the freezing, I would worry about moisture...)

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Progressive Automations Progressive Automations Linear Actuator Stroke Size 4", Force 150 lbs, Speed 0.59"/sec
BISS (Progressive Automations)
  • Voltage: 12 VDC
  • Stroke: 4
  • Force: 150 lbs
  • Current: 5A max
  • Retracted length: 8.13 and fully extended length: 12.13

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